I was reading The Wisdom In The Hebrew Months Volume 2. On page 327 it says:
Shlomo HaMelech said that if a person comes to ask which area he should choose to specialize in, the answer is: he should ...

Is him being a descendant of Solomon accepted as fact or is it only speculated to be the case?
Is this based off of the section in 1 Kings chapter 2 verse 4, where David tells Solomon how G-d promised ...

We see throughout the Navi that David does not want people killed on his behalf (Saul, Ish Boshet...) yet he does not get to build the Temple and the most common reason that David is told no by Hashem ...